Natural Selection is an action-strategy game for the PC. It is a "Half-life modification", which means it is written on top of the Half-life game engine. "Mods" are a new sort of underground game development that enables small teams to create games using the technology of existing games. This means less expensive and lower risk game development, which allows experimentation and innovation. This arrangement also implies that "mods" are made as art, not for making money. When complete, Natural Selection will be released for free to all owners of Half-life, which is required to play Natural Selection. Game summary Multiplayer-only Half-life mod where one team plays marines and the other plays aliens. The humans must keep their cool and work together to assault an alien-infested spacecraft or colony. Marines vs. marines and aliens vs. aliens scenarios are also supported. "First-person strategy" with a real resource model and consequences for actions....

Due to the nature of the balance changes we're making in NS v3.2, we've decided to open up testing in a public beta so we can get more feedback. Installing the beta will not interfere with your current NS install so clan players and others can continue playing without being affected. There

Due to the nature of the balance changes we're making in NS v3.2, we've decided to open up testing in a public beta so we can get more feedback. Installing the beta will not interfere with your current NS install so clan players and others can continue playing without being affected.

There are a lot of changes in v3.2, including four new maps, quite a few interface changes, HLTV improvements and more. The full changelog is here, and we suggest you read it while you download to avoid confusion!